Gas-lighting device



D. J. QUINN 8v P. W. HOFFMANN.

(No Model.)

GAS LIGHTING DEVICE.

Patented Ju UNITED STATES PATENT OFFICE.

DAVID J. QUINN, OF BROOKLINE, AND PAUL W. HOFFMANN, OF BOSTON, MASSACHUSETTS, ASSIGNORS TO THE IONA MANUFACTURING COMPANY,

OF MAINE.

GAS-LIGHTING DEVICE.

SPECIFICATION forming part of Letters Patent No. 478,522, dated July 5, 1892.

Application filed November 27. 1891. Serial No. 413,290. (No model.)

'To all whom t may concern:

' Be it known that We, DAVID J. QUINN, of Brookline, county of Norfolk, and PAUL W. HOFFMANN, of Boston, county of Suiolk, State of Massachusetts, have invented an Improvement in Electric Gas-Lighting Attachments, of which the following description, in connection with the accompanying' drawings, is a specification, like letters on the drawings representing like parts.

This invention relates to electric-lighting attachments for gas-burners, and has for its principal object to improve the sam e, whereby a greater movement of the gas-plug may be produced in order to avoid as far as possible all danger of leakage.

Another object of this invention is to provide improved mechanism for actuating the spark-striking arm.

Figure l represents in elevation a gaslighting attachment embodying this invention; Fig. 2, a similar view with the parts in different position; Fig. 3, a side elevation of the device, as shown in Fig. 1, andrFig. 4 a sectional detail of the valve.

Referring to the drawings, A represents a gas-burner of usual forni and construction, it having an interior gas-passage aX controlled by a suitable plug or other valve a, a passage c', which extends 'laterally through said valve, registering with the passage cx whenihe valve is in one position, to permit gas to rise through the passage LX to the tip or burner a2, such passage being cut ott by rotation of the said valve into its other position, as represented by dotted lines.

The valve c projects through the body of the burner A, as represented, and has fixed to its outer end the spark-arm b, carrying the coiled spring b', the extended end b2of which is adapted to co-operate with the fixed contact c on the ring c', clamped about and insulated from the burner A, to strike a spark when the said spark-arm is vibrated, as will be fully hereinafter described.

The spark-arm b at its pivotal center is provided with two diametrically-opposite ears b3 bhaving their ends turned in at right angles to abut against the face of a plate b5, also fast on the projecting end of the valve a. The

plate b5 is separated from the arm b by a space sufficient to admit the sliding frame e, oval in shape and spanning the end of the valve, as shown, said frame at its opposite sides having projections e e2, adapted to co-operate with the inturned ears b3 b4 on the spark-arm to move the latter when the frame is drawn down by a suitable pullf. The frame e has avsubstantially linear movement and is returned to and normally held in its uppermost position by a pair of springs 7i, arranged at opposite sides of the valve CL, said springs at their upper ends being attached to the fixed bracket m and vat their lower ends to the inturned arms eson the frame e, and said arms may be extended to straddle the neck ot' the burner A, so as to guide the frame in its vertical movements. ,Y

' In practice the lixed contact c on the ring c will be connected in usual manner with one pole of a battery or other generator of electricity, While the other pole ofthe battery will be connected with the gas pipe or burner A and its arm l); and, assuming the parts to be in the positions represented in the drawings, Fig. 1, with the valve a closing the gas-passage a?, the operation of the device may be described as follows:

The frame e will be drawn down by means of the pull f, causing the projection e thereon to catch on the inturned earl)3 on the arm b and turn the latter to rotate the valve a into its position Fig. 2, to permit the gasto rise through the passage a* to the tip a2, and as the arm b is moved from its position Fig. l to its position Fig. 2 the extended end b? of the spring b will Wipe over the contact c to close the electric circuit, and as the said end b2 springs away from the fixed contact after closing the circuit it will strike a spark, to ignite the gas rising through the tip a2. The pull being released the springs h will return the frame e to its normal elevated position,

as represented in dotted lines, Fig. 2, the central opening in the frame where it spans the valve a being of sufficient sizeAto permit the frame to move laterally to one side as it is restored to its normal position, in order that it may pass up between the ears b3'b4. The frame e having been returned to its normal position, as in dotted lines, Fig. 2, the tlame may be extinguished by again drawing down the frame e, which will canse the other projection e2 to catch on the inturned ear b4 or the arm b to rotate the valveain the opposite direction back to its former position, to close the passage 0.x and extinguish the flame, such `movement of the Valve carrying the arm b a co-operating fixed contact, combined'with a reciprocating actuating device for said valve and sparlearm, substantially as described.

2. A gas-burner and a rotatable valve therefor, a pivoted spark-arm provided with ears, and a co-operating fixed contact, combined with a frame having projections to engage the said ears, respectively, on alternate downward movements of said frame to oscillate said valve and arm, substantially as described.

3. A gas-burner, a rotatable valve therefor, a pivoted spark-arm provided with diametrically-opposite ears, and a co-operating fixed contact therefor, combined with a frame spanning said valve and having projections upon its opposite sides to engage the said ears to oscillate the said valve and arm when the frame is drawn down, and a spring to return said frame to its normal position, substantially as described.

4. A gasburner,a rotatable valve therefor, a pivoted spark-arm provided with ears, and a co-operating fixed contact therefor, combined with a frame e, having projections to engage said ears and having the guide-arms e3, substantially as described.

5. A gasbUrner, a rotatable valve therefor, an arm fast on said Valve and provided with inturned ears, the plate b5, and a fixed contact to co-operate with said arm, combined with the frame e, arranged between said arm and plate and having projections to co-operate with said ears and the springs 71., substantially as described. j

6. A gas-burnema rotatable Valve therefor, an arm fast on said valve and provided with inturned ears, the plate b5, and a fixed contact to co-operate with said arm, .combined with the frame e, arranged between said arm andA plate and vhaving projections to co-operate with said ears, the bracket m, and the springs h, substantially as described.

In testimony whereof we have signed our names to this specication inthe presence ot' two subscribing witnesses.

DAVID` J. QUINN. PAUL W. HOFFMANN.

Witnesses:

FREDERICK L. EMERY, FRANCES M. NOBLE. 

